Accession Number:

ADA043979

Title:

The Evaluation of a Digital Hardware Voter/Monitor in an Aircraft Control System.

Descriptive Note:

Final rept. Jan 75-Jan 77,

Corporate Author:

DYNAMIC DEVICES INC DAYTON OHIO

Personal Author(s):

• Schreadley,Harry W.

Report Date:

1977-05-01

Pagination or Media Count:

170.0

Abstract:

This report describes an evaluation and presents the test results of a Digital Hardware VoterMonitor used as an input signal selector and fault detector when used in conjunction with an electro-hydraulic control system. The DHVM operated as intended by design although asynchronous operation caused the failure detection to be frequency dependent. A digital filter could be incorporated to reduce the frequency dependency of the failure detection circuitry. Author

Descriptors:

• *FLIGHT CONTROL SYSTEMS
• DIGITAL SYSTEMS
• MONITORS
• REDUNDANCY
• PULSE DURATION MODULATION
• FLY BY WIRE CONTROL
• FAILURE(ELECTRONICS)
• ELECTROHYDRAULIC VALVES

Subject Categories:

• Flight Control and Instrumentation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE